I may be one of the few with an issue with the bolded part of the statement. As close as many guilds are to downing the Dread Guards, easily the hardest fight in the instance, any sort of edge is huge. Truth be told, 3 more bosses equals 3 more loot drops. These 3 more loot drops don't make a massive amount of difference, but when you have many guilds getting the hardest fight to the low health percentages that they have, those 3 loot drops can turn the fight from very difficult, to just plain difficult.
The bosses were downed through an unfortunate loophole in SWTOR's current raiding setup. I have no doubt in D&T's raid ability, I have seen them clear content with ease. They cleared this instance on the PTS and I believe that with more time they could have cleared the instance without skipping the boss. Less than two days were given to work on the hardest fight, in the hardest instance, in the hardest difficulty. I do not think they should be discredited as a guild or even that what they did wasn't the best choice. They simply used the "work smarter, not harder" approach.
Nonetheless, cheers D&T, you are the world first to have those pieces of gear.